package collectionzy;

import collection.Point;

import java.util.ArrayList;
import java.util.Collection;

public class zy01 {
    public static void main(String[] args) {
        Collection c1 = new ArrayList();
        c1.add(new Point(1,2));
        c1.add(new Point(3,4));
        c1.add(new Point(5,6));
        c1.add(new Point(7,8));
        c1.add(new Point(9,0));
        c1.add(new Point(1,2));
        System.out.println(c1);


        Point p = new Point(1,2);
        boolean contains = c1.contains(p);
        System.out.println("是否包含："+contains);

        c1.remove(p);
        System.out.println(c1);

        Collection cc = new ArrayList();
        Point pp = new Point(1,2);
        cc.add(pp);
        System.out.println("CC"+cc);
        System.out.println("pp"+pp);


        pp.setX(100);
        System.out.println("CC"+cc);
        System.out.println("pp"+pp);


        Collection c = new ArrayList();
        c.add("one");
        c.add("two");
        c.add("three");
        c.add("four");
        c.add("five");
        System.out.println(c);

        System.out.println("size:"+c.size());
        System.out.println("是否为空集："+c.isEmpty());

        c.clear();
        System.out.println("集合已清空");
        System.out.println(c);
        System.out.println("size："+c.size());
        System.out.println("是否为空集："+c.isEmpty());







//        Collection c1 = new ArrayList();
//        c1.add(new Point(1,2));
//        c1.add(new Point(3,4));
//        c1.add(new Point(5,6));
//        c1.add(new Point(7,8));
//        c1.add(new Point(9,0));
//        c1.add(new Point(1,2));
//        System.out.println(c1);
//
//
//        Point p = new Point(1,2);
//        boolean contains = c1.contains(p);
//        System.out.println("是否包含："+contains);
//
//        c1.remove(p);
//        System.out.println(c1);
//
//        Collection cc = new ArrayList();
//        Point pp = new Point(1,2);
//        cc.add(pp);
//        System.out.println("CC"+cc);
//        System.out.println("pp"+pp);
//
//
//        pp.setX(100);
//        System.out.println("CC"+cc);
//        System.out.println("pp"+pp);
//
//
//        Collection c = new ArrayList();
//        c.add("one");
//        c.add("two");
//        c.add("three");
//        c.add("four");
//        c.add("five");
//        System.out.println(c);
//
//        System.out.println("size:"+c.size());
//        System.out.println("是否为空集："+c.isEmpty());
//
//        c.clear();
//        System.out.println("集合已清空");
//        System.out.println(c);
//        System.out.println("size："+c.size());
//        System.out.println("是否为空集："+c.isEmpty());





    }
}
